Winding of threads and in apparatus therefor



0Ct. 25, H, B|DDULPH 1,885,058

WINDING- OF THREADS AND IN APPARATUS THEREFOR Filed April 7, 1931 l NVENTOR Patentecl Get. 25, 1932 warren STATES PATENT OFFICE HUGH BIDDULPE, or COVENTRY, ENGLAND, ASSIGNOR'TO ooURTADLDs LIMITED, or LONDON, ENGLAND a threads on pirns,

WINDING OF THREADS IN APPARATUS THEREFOR Application filed April 7, 1931, Serial No. 528,439, and in Great Britain April 14, 1930.

This invention relates tothewindi'ngof tubes and the like, and 1s particularly concerned with the method of winding in which the pirnor tube, on to which the thread is wound merely rotates, but does not receive any reciprocating motion, while a separate traverse motion'is employed to cause the thread to assume the customary layers on the pirn or tube. It has hitherto been usual to employ forthe traverse motion a reciprocating piece fitted with a thread guide consisting of a small wheel, Over which the thread runs, the said wheel being so arranged that its axis is parallel with the axis of the pirn or tube onto which the thread', is being wound. I have'found that when such winding apparatus is employed for winding onto a pirn or tube artificial silk, which contains only a small twist, for example, two or three turns per inch, the twist is liable to be displaced, so that some parts of the thread are more twisted than other parts, and the variat1ons in the twist of the thread are more or less periodic.

I have now found that I can obtain improved results as regards twist variation, when winding thread on to a pirn or tube when the said pirn or tube merely rotates, while the traverse motion is effected by a separate reciprocating piece of the apparatus, if the reciprocating thread guide which leads the thread on to the pirn or tube consists of, or comprises, two spaced grooved wheels over which the thread passes,

the axes of said Wheels being parallel and 3 with the shaft of the pirn thread breaks. Afterpassing the said contact breaker D, the'threa'd A passes over two small wheelsrE and F, and thence to a pirn Gr. As shown in Figure 1 the small.

wheels E and F are mounted on shafts carried on a piece H, which, by suitable means,

is caused toreciprocate in a path parallel V G. As is clearly seen from the drawing, the axes of the two periodic variations of twist thanwhen the thread is passed over a guiding wheel the axis of which is parallel with the axis of the pirn, or tube.

What I claim is In an apparatus for the winding of threads, I

a reciprocatingthread guide for leading the thread on to a pirn spaced grooved wheels over which the thread passes in succession, the axes of said wheels being parallel and their common plane being at right angles to the axis of the pirn or tube, said wheels being fixedly mounted in relation to one another upon a reciprocating member.

In testimony whereof I name to this specification.

HUGH IDDULPH.

have signed my their common plane being at right angles to a the axis of the pirn or tube,

In the accompanying diagrammatic drawing Figure 1 illustrates in front elevation and Figure 2 in side elevation so much of a pirn-Winding apparatus, as is necessary to illustrate a method of carrying out theinvention in practice but the invention. is not restricted thereto. In these figures, A represents the thread which is leaving the bobbin B and passing over a compensating roller C and past a contact breaker .D, this contact breaker being of the usual, or any suitable or tube, comprising tWO' type, which automatically stops the motion of the pirn andtraverse'when the 

